Stock Prediction: a method based on extraction of news features and recurrent neural networks
Stock Prediction: a method based on extraction of news features and recurrent neural networks
Zeya Zhang
Weizheng Chen
Hongfei Yan
Published on 7/19/2017
Stocks
Machine learning
Deep learning
Sentiment
Stock picking
This paper presents a stock prediction method that integrates news feature extraction with recurrent neural networks (RNNs). The authors first select seed words indicative of good or bad news and optimize word polarity scores. News features are then constructed based on the aggregated polarity of words in each article. To model the sequential nature of stock prices and the continuous impact of news, an RNN is employed. Experiments show that the proposed method achieves over 5% higher accuracy compared to a standard SVM classifier using only price features, demonstrating the value of incorporating news sentiment into time-series prediction.
Highlights
- 1Proposes a novel method for stock prediction by extracting features from news articles using seed words and optimization.
- 2Introduces a recurrent neural network (RNN) model to capture sequential stock prices and continuous news effects.
- 3Achieves over 5% improvement in prediction accuracy compared to SVM with price features.
- 4Combines news sentiment analysis with time-series modeling for enhanced stock prediction.
Methods
- MSeed word selection and optimization to compute positive polarity of words.
- MNews feature construction based on word positive polarity.
- MRecurrent neural network (RNN) for sequential stock price and news effect modeling.
- MComparison with SVM classifier using price features as baseline.
Results
- RThe proposed method outperforms SVM with price features by over 5% in stock prediction accuracy.
- RNews features extracted via seed word optimization effectively capture market sentiment.
- RRNN model successfully integrates sequential price data and news effects.
- RExperimental results validate the effectiveness of combining news and price features.
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